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Operating Segments and Enterprise-Wide Information (Tables)

6 Months Ended

Jun. 28, 2025

Segment Reporting [Abstract]

Schedule of Operating Results by Segment

The following table provides net contribution by reportable segment and includes a reconciliation to net income before income taxes (dollars in thousands):

			Three Months Ended
			June 28, 2025																								June 29, 2024
			Probe Cards						Systems						Corporate and Other						Total						Probe Cards						Systems						Corporate and Other						Total
Revenues			$	162,108					$	33,690					$	—					$	195,798					$	166,792					$	30,682					$	—					$	197,474
Cost of revenues			100,040						20,419						(2,401)						122,860						91,553						16,505						(2,516)						110,574
Gross profit			62,068						13,271						(2,401)						72,938						75,239						14,177						(2,516)						86,900
Gross margin			38.3		%				39.4		%										37.3		%				45.1		%				46.2		%										44.0		%
Research and development			20,974						5,261						2,558						28,793						23,710						5,240						2,614						31,564
Selling			7,181						3,424						1,369						11,974						8,353						4,174						1,367						13,894
Marketing			1,598						1,882						1,327						4,807						2,907						1,824						1,761						6,492
Net contribution			$	32,315					$	2,704					$	(7,655)					27,364						$	40,269					$	2,939					$	(8,258)					34,950
General and administrative																					15,058																								17,488
Gain on sale of business																					—																								310
Operating income																					12,306																								17,772
Interest income, net																					2,642																								3,415
Other income (expense), net																					(6)																								360
Income before income taxes																					$	14,942																							$	21,547

Schedule of Disaggregation of Revenue by Segment

Certain revenue category information by reportable segment was as follows (in thousands):

			Three Months Ended
			June 28, 2025																		June 29, 2024
			Probe Cards						Systems						Total						Probe Cards						Systems						Total
Market:
Foundry & Logic			$	99,513					$	—					$	99,513					$	103,660					$	—					$	103,660
DRAM			57,057						—						57,057						58,042						—						58,042
Flash			5,538						—						5,538						5,090						—						5,090
Systems			—						33,690						33,690						—						30,682						30,682
Total			$	162,108					$	33,690					$	195,798					$	166,792					$	30,682					$	197,474
Timing of revenue recognition:
Products transferred at a point in time			$	160,552					$	30,243					$	190,795					$	165,492					$	28,129					$	193,621
Products and services transferred over time			1,556						3,447						5,003						1,300						2,553						3,853
Total			$	162,108					$	33,690					$	195,798					$	166,792					$	30,682					$	197,474
Geographical region:
South Korea			$	55,836					$	1,293					$	57,129					$	48,691					$	416					$	49,107
Taiwan			46,814						6,065						52,879						40,192						4,621						44,813
United States			32,849						8,075						40,924						39,435						8,456						47,891
Japan			7,080						7,586						14,666						4,513						3,098						7,611
China			4,633						4,767						9,400						20,311						4,776						25,087
Europe			3,224						4,024						7,248						3,250						5,565						8,815
Singapore			5,489						1,190						6,679						4,112						410						4,522
Malaysia			5,112						43						5,155						5,084						1,518						6,602
Rest of World			1,071						647						1,718						1,204						1,822						3,026
Total			$	162,108					$	33,690					$	195,798					$	166,792					$	30,682					$	197,474

			Six Months Ended
			June 28, 2025																		June 29, 2024
			Probe Cards						Systems						Total						Probe Cards						Systems						Total
Market:
Foundry & Logic			$	184,785					$	—					$	184,785					$	190,428					$	—					$	190,428
DRAM			105,915						—						105,915						103,938						—						103,938
Flash			7,928						—						7,928						9,127						—						9,127
Systems			—						68,526						68,526						—						62,706						62,706
Total			$	298,628					$	68,526					$	367,154					$	303,493					$	62,706					$	366,199
Timing of revenue recognition:
Products transferred at a point in time			$	295,273					$	61,578					$	356,851					$	301,133					$	56,913					$	358,046
Products and services transferred over time			3,355						6,948						10,303						2,360						5,793						8,153
Total			$	298,628					$	68,526					$	367,154					$	303,493					$	62,706					$	366,199
Geographical region:
South Korea			$	98,045					$	2,255					$	100,300					$	99,363					$	461					$	99,824
Taiwan			87,561						10,680						98,241						67,371						7,319						74,690
United States			60,633						20,616						81,249						75,031						18,626						93,657
Japan			12,259						12,726						24,985						8,860						7,293						16,153
China			12,785						10,230						23,015						28,997						11,703						40,700
Europe			6,759						8,270						15,029						6,778						10,886						17,664
Singapore			10,360						2,568						12,928						7,628						1,652						9,280
Malaysia			7,664						91						7,755						6,692						1,773						8,465
Rest of the world			2,562						1,090						3,652						2,773						2,993						5,766
Total			$	298,628					$	68,526					$	367,154					$	303,493					$	62,706					$	366,199

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

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-Topic 606
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Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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